Column matching is case sensitive

[inconshreveable]

Repro Steps

create table foo (id integer);

/* name: q :one */
SELECT * FROM foo where ID = ?;

sqlc generate

Expected

No error

Observed

package mysql

example.sql:1:1: column "ID" does not exist

Notes

Version: Version v0.0.0-20210319232515-4d28821de6ae

sql columns are case-insensitive per (i believe) the sql standard, or at the very least de facto across every database engine that i've used.

it's easy to work around by renaming the column to have the same casing as used in the DDL

i've only tested this on the mysql engine, it's unknown whether a similar issue exists for other engines.

[kyleconroy]

Replaced by #1215, which has a playground link and full example.